Home / 305,414-657,655

Finding the Third Proportional to 305,414 and 657,655

Calculator

Solution

The third proportional to 305,414 and 657,655 is: 1,416,143.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,414 : 657,655 = 657,655 : x
  2. Step 2: Convert to fraction form
    305,414/657,655 = 657,655/x
  3. Step 3: Cross multiply
    305,414x = 657,655 × 657,655
  4. Step 4: Simplify right side
    305,414x = 432,510,099,025
  5. Step 5: Solve for x
    x = 432,510,099,025/305,414
  6. Step 6: Final answer
    x = 1,416,143.66

Related Problems

Find third proportional to 152,707 and 328,827.50
Half scale
Find third proportional to 610,828 and 1,315,310
Double scale
Find third proportional to 305,416 and 657,659
Similar ratio
Find third proportional to 458,121 and 986,482.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.